Timing attack test

timingattack.rb

# $ gem install benchmark-ips

require 'benchmark/ips'

Benchmark.ips do |x|
  x.report("long correct string: ") { "abfhbeufangi" == "abfhbeufangi" }
  x.report("long mostly correct string: ") { "abfhbeufangx" == "abfhbeufangi" }
  x.report("long incorrect string: ") { "bbfhbeufangi" == "abfhbeufangi" }
  x.report("too short: ") { "bbfhbe" == "abfhbeufangi" }
  x.report("too long: ") { "abfhbeufangibbfhbe" == "abfhbeufangi" }
  
  some_string = "boobahbear"
  x.report("same object: ") { some_string == some_string }
end

=begin result
Warming up --------------------------------------
long correct string:
                       242.992k i/100ms
long mostly correct string:
                       218.304k i/100ms
long incorrect string:
                       231.458k i/100ms
         too short:    240.521k i/100ms
          too long:    240.734k i/100ms
       same object:    250.431k i/100ms
Calculating -------------------------------------
long correct string:
                          4.537M (±18.7%) i/s -     21.626M in   5.026472s
long mostly correct string:
                          3.087M (±25.8%) i/s -     13.971M in   5.018859s
long incorrect string:
                          4.078M (±25.8%) i/s -     18.054M in   5.043101s
         too short:       5.139M (± 8.9%) i/s -     25.495M in   5.007632s
          too long:       5.137M (± 9.8%) i/s -     25.518M in   5.023060s
       same object:       8.476M (± 8.9%) i/s -     42.072M in   5.006357s
=end